<!--  -->
<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <el-row :gutter="20">
        <!-- 搜索框区域 -->
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <!-- 按钮区域 -->
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- table表格区域 -->
      <el-table :data="goodsList" border stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格（元）" prop="goods_price" width="120px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="120px"></el-table-column>
        <el-table-column label="创建时间" width="200px">
          <template v-slot="scope">{{scope.row.add_time | dateFormat}}</template>
        </el-table-column>
        <el-table-column label="操作" width="120px">
          <template v-slot="scope">
            <el-button type="primary" size="mini" icon="el-icon-edit"></el-button>
            <el-button
              type="danger"
              size="mini"
              icon="el-icon-delete"
              @click="removeById(scope.row.goods_id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      ></el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      //   商品列表
      goodsList: [],
      //   总数据条数
      total: 0
    };
  },
  created() {
    this.getGoodsList();
  },
  methods: {
    //   根据分页获取对应的商品列表
    getGoodsList() {
      this.$http.get('goods', { params: this.queryInfo }).then(res => {
        const data = res.data;
        if (data.meta.status !== 200) {
          return this.$message.error('获取商品列表失败！');
        }

        // this.$message.success('获取商品列表成功！');
        this.goodsList = data.data.goods;
        this.total = data.data.total;
      });
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getGoodsList();
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getGoodsList();
    },
    removeById(id) {
      this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      })
        .then(() => {
          this.$http.delete(`goods/${id}`).then(res => {
            const data = res.data;
            if (data.meta.status !== 200) {
              return this.$message.error('删除商品失败！');
            }
            this.$message({
              type: 'success',
              message: '删除商品成功!'
            });
            this.getGoodsList();
          });
        })
        .catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除'
          });
        });
    },
    // 跳转到添加商品的页面
    goAddPage() {
      this.$router.push('goods/add');
    }
  }
};
</script>

<style scoped>
</style>
